FAO DKIrkham,
That is a fantastic achievement and as a Production Manager I fully understand and appreciate it. However it did remind me of an article I read when researching Lean. The author was recalling a meeting with the man himself (Dr. Shingo) and as he told him of a similarly excellent...
We are currently carrying out a KANBAN trial on one of our product lines and I found that by researching this and 5S techniques they work really well together and are an easy intro to a full Lean System.
Plenty of articles online - www.strategosinc.com/kanban_1.htm